381 lines
13 KiB
TypeScript
381 lines
13 KiB
TypeScript
"use client";
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/**
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* SharePostSheet — share a quote you've posted to external apps.
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*
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* Modal on desktop (Drawer direction="right"), drawer on mobile
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* (direction="bottom"). Same UI primitive CollectionsDrawer uses.
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*
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* What we share:
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*
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* "<full caption>"
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*
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* — <reference, e.g. Bhagavad-gītā 2.13>
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*
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* <shortened URL pointing to the POST on your profile feed>
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*
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* The link target is `/u/<handle>/posts#post-<id>` — the Instagram-style
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* scroll view anchored to this specific post — rather than the raw
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* source URL. Recipients land on the card (image, your caption, your
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* byline) and can click through to the original passage from there.
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* This matches how every major social product handles "share a post":
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* the share URL is the post, not the underlying resource.
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*
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* URL is run through createShortLink (same /share/<code> short-code
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* service the selection-toolbar uses) so the payload stays compact and
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* the click-through is trackable. The shortener's ValidatePath tolerates
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* fragments, and the destination pages' existing hash-anchor effect
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* scrolls to the post on mount — no other code needs to know.
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*
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* Sharing channels:
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*
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* • WhatsApp / Telegram / X / Facebook — official web share intents.
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* We open them in a new window; the user finishes in that app.
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* • Instagram — has no web share intent. We copy the payload + toast
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* "paste in Instagram" so the user can switch and paste.
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* • Email — mailto: with prefilled subject + body.
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* • Copy — drops the full payload on the clipboard.
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* • More — only when navigator.share is supported AND we're on mobile.
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* Tries to attach the first image as a File via navigator.canShare;
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* falls back to text-only if R2 CORS blocks the blob fetch.
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*
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* Images travel only via the native-share path. None of the open web
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* share intents accept an image URL directly — they pull OpenGraph
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* metadata from the linked page instead, which we don't currently
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* generate per-post. That's the "bonus" the brief allows for.
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*/
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import { useEffect, useMemo, useState } from "react";
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import { toast } from "sonner";
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import {
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FaWhatsapp,
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FaTelegram,
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FaXTwitter,
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FaFacebook,
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FaInstagram,
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FaEnvelope,
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} from "react-icons/fa6";
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import { Copy, Loader2, Share2 } from "lucide-react";
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import {
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Drawer,
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DrawerContent,
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DrawerHeader,
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DrawerTitle,
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} from "@/components/ui/drawer";
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import { cn } from "@/lib/utils";
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import type { Post } from "@/lib/social";
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import { createShortLink } from "@/lib/share";
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import { displaySourceLabel } from "@/lib/source-reference";
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import { useAuth } from "@/components/auth/auth-provider";
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export function SharePostSheet({
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open,
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onClose,
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post,
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isMobile,
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}: {
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open: boolean;
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onClose: () => void;
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post: Post;
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isMobile: boolean;
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}) {
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const reference = displaySourceLabel(post.source_url, post.source_title);
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const firstImage = post.images?.[0]?.url ?? null;
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const { user } = useAuth();
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// The Send button is only rendered for owners, so user is guaranteed
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// non-null here; we still defensively fall back via `?? ""` rather than
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// crashing if the auth context blips during a re-render.
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const authorHandle = post.author_handle ?? user?.handle ?? "";
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const [shortUrl, setShortUrl] = useState<string | null>(null);
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const [shortening, setShortening] = useState(false);
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// navigator.share only exists on a subset of browsers (mainly mobile
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// Safari/Chrome and some desktop Safari builds). Capability-check once
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// on mount; combined with `isMobile` to gate the "More" tile so the
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// affordance only appears where it can do something useful.
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const [nativeShareSupported, setNativeShareSupported] = useState(false);
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useEffect(() => {
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setNativeShareSupported(
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typeof navigator !== "undefined" &&
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typeof navigator.share === "function",
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);
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}, []);
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// Shorten the post's anchor URL on the author's feed when the sheet
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// opens. The path takes the form `/u/<handle>/posts#post-<id>`; the
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// BFF's ValidatePath tolerates fragments, and the destination page
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// already has a hash-anchor effect that scrolls to the post once the
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// feed loads, so the recipient lands on the right card automatically.
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useEffect(() => {
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if (!open) return;
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if (!authorHandle) return;
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let cancelled = false;
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setShortening(true);
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(async () => {
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try {
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const origin = window.location.origin;
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const longPath = `/u/${encodeURIComponent(authorHandle)}/posts#post-${post.id}`;
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const code = await createShortLink(longPath);
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if (cancelled) return;
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if (!code) {
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// Shorten failed — use the long URL so the share payload at
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// least carries SOMETHING clickable.
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setShortUrl(new URL(longPath, origin).toString());
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return;
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}
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setShortUrl(new URL(`/share/${code}`, origin).toString());
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} catch {
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// Should be unreachable — createShortLink swallows its own
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// failures. Fall back to a non-shortened long URL.
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if (!cancelled) {
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setShortUrl(
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new URL(
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`/u/${encodeURIComponent(authorHandle)}/posts#post-${post.id}`,
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window.location.origin,
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).toString(),
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);
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}
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} finally {
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if (!cancelled) setShortening(false);
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}
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})();
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return () => {
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cancelled = true;
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};
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}, [open, authorHandle, post.id]);
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// Canonical share payload — quote, reference, link. Built lazily because
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// shortUrl arrives async; while loading we render a spinner instead.
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const shareText = useMemo(() => {
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if (!shortUrl) return "";
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return `“${post.caption}”\n\n— ${reference}\n\n${shortUrl}`;
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}, [post.caption, reference, shortUrl]);
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function openIntent(url: string) {
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window.open(url, "_blank", "noopener,noreferrer");
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onClose();
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}
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async function copyText(text: string, successMsg = "Copied") {
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try {
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await navigator.clipboard.writeText(text);
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toast.success(successMsg);
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} catch {
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toast.error("Could not copy");
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}
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onClose();
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}
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async function shareNative() {
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if (!nativeShareSupported) return;
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const payload: ShareData = {
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title: reference,
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text: shareText,
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};
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// Bonus: attach the first image as a File so the recipient gets
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// the visual. Requires (a) R2 to allow CORS GET on the public URL
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// and (b) navigator.canShare to accept the File. If either fails
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// we silently degrade to text-only — the quote + URL still go
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// through, which is the contract.
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if (firstImage) {
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try {
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const res = await fetch(firstImage, { mode: "cors" });
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if (res.ok) {
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const blob = await res.blob();
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const ext = (blob.type.split("/")[1] || "jpg").toLowerCase();
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const file = new File([blob], `share.${ext}`, {
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type: blob.type || "image/jpeg",
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});
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if (
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typeof navigator.canShare === "function" &&
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navigator.canShare({ files: [file] })
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) {
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payload.files = [file];
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}
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}
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} catch {
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// CORS-blocked or network error — proceed without files.
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}
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}
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try {
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await navigator.share(payload);
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onClose();
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} catch {
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// User cancelled the share sheet; leave the drawer open so they
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// can pick another target.
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}
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}
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// Channel tiles — kept in a single declarative list so the JSX is just
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// a map. Each tile's onClick closes the sheet to give the user a clean
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// "done" signal.
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const targets: ShareTarget[] = [
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{
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key: "whatsapp",
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label: "WhatsApp",
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brandClass: "text-[#25D366]",
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icon: <FaWhatsapp className="size-6" />,
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onClick: () =>
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openIntent(`https://wa.me/?text=${encodeURIComponent(shareText)}`),
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},
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{
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key: "telegram",
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label: "Telegram",
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brandClass: "text-[#229ED9]",
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icon: <FaTelegram className="size-6" />,
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onClick: () => {
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// Telegram's share URL splits text + url so the link is
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// attached as a separate entity (better preview rendering).
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const params = new URLSearchParams({
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url: shortUrl ?? "",
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text: `“${post.caption}” — ${reference}`,
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});
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openIntent(`https://t.me/share/url?${params.toString()}`);
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},
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},
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{
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key: "x",
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label: "X",
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brandClass: "text-foreground",
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icon: <FaXTwitter className="size-6" />,
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onClick: () =>
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openIntent(
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`https://twitter.com/intent/tweet?text=${encodeURIComponent(shareText)}`,
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),
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},
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{
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key: "facebook",
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label: "Facebook",
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brandClass: "text-[#1877F2]",
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icon: <FaFacebook className="size-6" />,
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// Facebook's web sharer ignores prefilled text for non-FB-app
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// shares, so we send only the URL — FB scrapes OG tags from the
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// linked page. The user can paste the rest before posting.
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onClick: () =>
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openIntent(
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`https://www.facebook.com/sharer/sharer.php?u=${encodeURIComponent(shortUrl ?? "")}`,
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),
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},
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{
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key: "instagram",
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label: "Instagram",
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brandClass: "text-[#E1306C]",
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icon: <FaInstagram className="size-6" />,
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// Instagram has no public web share intent. Copy the payload and
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// tell the user where it'll land.
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onClick: () =>
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copyText(shareText, "Copied — open Instagram and paste"),
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},
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{
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key: "email",
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label: "Email",
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brandClass: "text-muted-foreground",
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icon: <FaEnvelope className="size-6" />,
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onClick: () => {
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// mailto: drives the user's default mail client. Some clients
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// crop very long bodies; the user can edit before sending.
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const href =
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`mailto:?subject=${encodeURIComponent(reference)}` +
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`&body=${encodeURIComponent(shareText)}`;
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window.location.href = href;
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onClose();
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},
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},
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{
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key: "copy",
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label: "Copy",
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brandClass: "text-muted-foreground",
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icon: <Copy className="size-6" />,
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onClick: () => copyText(shareText),
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},
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];
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const direction = isMobile ? "bottom" : "right";
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return (
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<Drawer
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open={open}
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onOpenChange={(o) => !o && onClose()}
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direction={direction}
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>
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<DrawerContent direction={direction} className="bg-card">
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<DrawerHeader className="text-left border-b border-border pb-4">
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<DrawerTitle>Share post</DrawerTitle>
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<p className="text-xs text-muted-foreground mt-1 line-clamp-2">
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“{post.caption.slice(0, 140)}
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{post.caption.length > 140 ? "…" : ""}”
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</p>
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<p className="text-[10px] uppercase tracking-[0.2em] text-muted-foreground/80 mt-1">
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{reference}
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</p>
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</DrawerHeader>
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<div className="p-4 sm:p-6 overflow-y-auto">
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{shortening ? (
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<div className="flex items-center justify-center py-10 text-muted-foreground">
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<Loader2 className="size-5 animate-spin" />
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</div>
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) : (
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<div className="grid grid-cols-4 gap-3 sm:grid-cols-5">
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{targets.map((t) => (
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<ShareTile key={t.key} target={t} />
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))}
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{isMobile && nativeShareSupported ? (
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<ShareTile
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target={{
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key: "native",
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label: "More",
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brandClass: "text-foreground",
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icon: <Share2 className="size-6" />,
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onClick: shareNative,
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}}
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/>
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) : null}
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</div>
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)}
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</div>
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</DrawerContent>
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</Drawer>
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);
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}
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// ─── Pieces ────────────────────────────────────────────────────────────
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type ShareTarget = {
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key: string;
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label: string;
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/** Tailwind text color class applied to the icon — usually the brand's
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* hex, falling back to text-foreground / text-muted-foreground. */
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brandClass: string;
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icon: React.ReactNode;
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onClick: () => void;
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};
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function ShareTile({ target }: { target: ShareTarget }) {
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return (
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<button
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type="button"
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onClick={target.onClick}
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className={cn(
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"flex flex-col items-center gap-1.5 rounded-lg p-2 sm:p-3",
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"hover:bg-muted transition-colors",
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"outline-none focus-visible:ring-2 focus-visible:ring-ring",
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)}
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>
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<span
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className={cn(
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"flex items-center justify-center size-12 rounded-full",
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"bg-muted",
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target.brandClass,
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)}
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>
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{target.icon}
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</span>
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<span className="text-[11px] text-foreground text-center leading-tight">
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{target.label}
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</span>
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</button>
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);
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}
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